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Slovensko   English2024-03-29

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On March 4, 2024, the kick-off meeting of the new European doctoral network “Magnetic Soft Matter for Robotics” (MAESTRI) took place at the East Bavarian Technical University (OTH) Regensburg. This doctoral network responds to the existing need to train a new generation of experts in the emerging subfield of soft robotics, which is based on the control of material properties through a magnetic field - magnetic soft robotics. The materials involved are elastomers and complementary fluids filled with micro- and nanometer-sized magnetic particles. The consortium consists of seven academic and two industrial partners in five countries (Denmark, Germany, Italy, Austria, Slovenia), who come from the fields of biology, materials science, physics and robotics. Another three associated partners from the USA, Germany, and Slovenia (The Jožef Stefan International Postgraduate School) are involved in research and teaching transferable skills. In this project, Department for Materials Synthesis, JSI, (Prof. Darko Makovec, Prof. Darja Lisjak) is responsible for synthesis of the magneto-responsive materials.

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Dr. Urška Trstenjak from Department for Advanced Materials Department at Jožef Stefan Institute, together with the Electronic Materials research group (PGI-7) from, has published a paper entitled Heterogeneous Integration of Graphene and HfO₂ Memristors in Advanced Functional Materials. Using pulsed-laser deposition (PLD) the team successfully syntheiszed HfO₂ thin films on graphene/SiO₂/Si templates via quasi van der Waals growth. By analyzing the data obtained from Raman spectroscopy in detail, they found that the defects induced in the graphene by the HfO₂ deposition are predominantly sp²-type, and are formed due to the high kinetic energy of the plasma-plume particles. They showed that by replacing oxygen with argon during PLD growth of hafnia, the hafnia layer remains sufficiently oxidized, while the underlying graphene is well preserved and can be used as a bottom electrode for memristive devices. The findings of the study, that graphene can be used for the heterogeneous integration of crystalline HfO₂ thin films, can be ulitized for the design of other graphene-containing electronic devices.

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At the Department of Knowledge Technologies and the Department of Intelligent Systems at Jožef Stefan Institute they have kick-started the new year with work on the SEEDS project — Cost-effective and replicable RES-integrated electrified heating and cooling systems for improved energy efficiency and demand response. The project is funded within the EU Horizon Europe programme and brings together 26 partners from 8 different countries, with a total budget of 14.3 € million, 0.75 € million of which is shared between the two departments at JSI. The main focus within SEEDS is on creating a methodology for offering locally distributed energy flexibility services to various market players. These services play a crucial role in enhancing grid stability but come with challenges such as dynamic resource allocation, aggregation, adherence to controllers, and collaboration among numerous stakeholders. To address these complexities, they will employ advanced techniques and multi-criteria decision modeling. The solution will undergo testing at the Slovenian pilot site alongside Petrol d.d. and Elektro Celje d.d., paving the way for large-scale implementation of these services.

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Jerica Sabotič and Nika Janež from the Department of Biotechnology of the Jožef Stefan Institute, in collaboration with blue biotechnology experts who are members of the COST Action Network CA18238 Ocean4Biotech, have prepared a comprehensive guide for the use of bioassays for effective discovery of bioactive compounds, which has been published in the prestigious journal Biotechnology Advances. In the search for bioactive compounds from natural resources, bioassays are an indispensable tool that is critical to unlocking optimal bioprospecting potential. This review navigates the complicated landscape of bioassay selection and use and provides valuable insights into the effective exploration of bioactive compounds from natural resources, with a focus on the marine environment. From antimicrobial activity to anti-ageing potential, we explore a spectrum of bioactivities that are critical to the development of pharmaceuticals, food supplements and cosmetics. We emphasize the importance of incorporating various bioassay protocols and performing robust bioassay validation and quality control to ensure the reliability of data generation and safety assessment.

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